Thank you. During the waiting I manage to obtain something similar but yours is helpfull too. I've created the external surface by rotating a single line, Then I've extruded the mesh by some layers. Finally, in order to refine, I had applied some transfinite on the fillets.
-- Luca Verzeroli R&D Process Engineer - Global Headquarters Mob. +39 3207240806 Serioplast Global Services Spa Via Spirano, 528 24059 Urgnano (BG) - Italy www.serioplast.com On Mon, 9 Jul 2018 at 21:17, Christophe Geuzaine <[email protected]> wrote: > > Hi Luca, > > Do you want to generate a fully structured grid? Then the easiest is to > directly extrude the mesh - see the attached file: > > > Note that there is a small trick to get a fully extruded mesh in your > case, as we can currently only extrude meshes on OpenCASCADE geometries by > rotation angles (strictly) smaller than 2*pi. I thus had to rotate in 2 > steps. However this would lead to duplicate vertices on the seam - because > if we apply "Coherence" (or "BooleanFragments") the geometrical entities > will change... which will prevent the mesh extrusion to work. So the trick > is: > > - extrude in 2 parts > - mesh > - remove the duplicate vertices "by hand" with the "Coherence Mesh" > command. > > This is a bit ugly, but at least it works ;-) > > Christophe > > > On 3 Jul 2018, at 09:20, Luca Verzeroli <[email protected]> > wrote: > > Hi, > > I'm a researcher at the University of Bergamo (Italy). Me and my team are > dealing with a FEM simulation involving bottles. We are trying to create a > 3D mesh of a simple bottle obtained by rotating a section. I'm attaching > the example and the geo file. > > The main difficulties we faced with is the insertion of almost two layers > in the thickness. In the attachments we are trying to use two layers but we > should add some more. > > Could someone give us some advice to realize a correct mesh? > > <Screenshot from 2018-07-03 09-04-31.png><Screenshot from 2018-07-03 > 09-05-14.png><Screenshot from 2018-07-03 09-06-17.png><bottle.geo> > _______________________________________________ > gmsh mailing list > [email protected] > http://onelab.info/mailman/listinfo/gmsh > > > — > Prof. Christophe Geuzaine > University of Liege, Electrical Engineering and Computer Science > http://www.montefiore.ulg.ac.be/~geuzaine > > Free software: http://gmsh.info | http://getdp.info | http://onelab.info > >
_______________________________________________ gmsh mailing list [email protected] http://onelab.info/mailman/listinfo/gmsh
